Market size of ZEH Japan 2016-2018

In 2018, the market size of zero energy houses (ZEH) in Japan reached approximately 1.6 trillion Japanese yen. Figures increased steadily in recent years.

 Zero energy houses

Zero energy houses are constructed to have no net energy consumption. The total amount of energy that the ZEH consumes annually is designed to be equal to the amount of renewable energy that is generated on the site, mostly by solar panels or wind energy. ZEH usually have insulation that keeps the temperature inside the house stable which helps to reduce the need for heating or cooling.
Furthermore, the market size of home energy management systems was forecasted to increase as well. These computer-aided systems monitor and control the energy flows in a power supply network and achieve energy efficiency through process optimization.

 Green technology in Japan

Important factors of green or environmental technologies are the focus on sustainable development as well as the goal to restraint the negative impacts of humans on the environment. Key markets are renewable energies, energy efficiency, sustainable mobility, as well as sustainable waste and water management.
The term greentech is often used to refer to sustainable energy generation technologies. In recent years, Japan steadily expanded its electricity production from renewables, and currently focuses on investments in solar and wind energy.
Since the country lags in other key markets, such as electric vehicles, the Japanese government made efforts to promote next-generation vehicles, increasing new electric vehicle sales.